<template>


  <a-layout style="padding: 24px 0; background: #fff">
    <a-layout-content :style="{ padding: '24px', margin: 0,  minHeight: '280px' }">

      <a-row :gutter="24">
        <a-col :span="8">

      <p>
        <a-form layout="inline" :model="param">
          <a-form-item>
            <a-button type="primary" @click="handleQuery">
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
        v-if="level1.length > 0"
        :columns="columns"
        :row-key="record => record.id"
        :data-source="level1"
        :loading="loading"
        :pagination="false"
        size="small"
        :defaultExpandAllRows="true"
      >
        <template #name="{ text, record }">
          {{record.sort}} {{text}}
        </template>
        <template #cover="{ text: cover }">
          <img v-if="cover" :src="cover" alt="avatar" />
        </template>
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>
            <a-popconfirm
              title="删除后不可恢复，确认删除?"
              ok-text="是"
              cancel-text="否"
              @confirm="handleDelete(record.id)"
            >
              <a-button type="dashed">
                删除
              </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>

        </a-col>

        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form  :model="doc" layout="vertical" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
            <a-form-item >
              <a-input v-model:value="doc.name" placeholder="文档名称" />
            </a-form-item>
            <a-form-item>

              <a-tree-select
                v-model:value="doc.parent"
                style="width: 100%"
                :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }"
                :replaceFields="{label: 'name', key: 'id', value: 'id'}"
                :tree-data="treeSelectData"
                placeholder="选择父文档"
                tree-default-expand-all
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item >
              <a-input v-model:value="doc.sort" placeholder="排序" />
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined /> 内容预览
              </a-button>
            </a-form-item>
            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>

      </a-row>


      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>

    </a-layout-content>
  </a-layout>


<!--  <a-modal-->
<!--    title="文档表单"-->
<!--    v-model:visible="modalVisible"-->
<!--    :confirm-loading="modalLoading"-->
<!--    @ok="handleModalOk"-->
<!--  >-->
<!--  </a-modal>-->

</template>

<script lang="ts">
import {createVNode, defineComponent, onMounted, ref} from 'vue';
import axios from 'axios';
import {message, Modal} from 'ant-design-vue';
import {Tool} from "@/util/tool";
import {useRoute} from "vue-router";
import {ExclamationCircleOutlined} from "@ant-design/icons-vue";
import E from 'wangeditor'


export default defineComponent({
  name: 'AdminDoc',
  setup() {
    const route = useRoute();
    console.log("路由：", route);
    console.log("route.path：", route.path);
    console.log("route.query：", route.query);
    console.log("route.param：", route.params);
    console.log("route.fullPath：", route.fullPath);
    console.log("route.name：", route.name);
    console.log("route.meta：", route.meta);
    const param = ref();
    param.value = {};
    const docs = ref<any>();
    const loading = ref(false);

    // 因为树选择组件的属性状态，会随当前编辑的节点而变化，所以单独声明一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];

    /**
     * 一级分类树，children属性就是二级分类
     * [{
     *   id: "",
     *   name: "",
     *   children: [{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
    const level1 = ref(); // 一级分类树，children属性就是二级分类
    level1.value = [];


    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
        slots: { customRender: 'name' }
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];

    const handleDelete = (id: number) => {
      // console.log(level1, level1.value, id)
      // 清空数组，否则多次删除时，数组会一直增加
      deleteIds.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除：【' + deleteNames.join("，") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.delete("/doc/delete/" + deleteIds.join(",")).then((response) => {
            const data = response.data; // data = commonResp
            if (data.success) {
              // 重新加载列表
              handleQuery();
            } else {
              message.error(data.message);
            }
          });
        },
      });
    }

    const deleteIds: Array<string> = [];
    const deleteNames: Array<string> = [];
    /**
     * 查找整根树枝
     */
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标ID放入结果集ids
          // node.disabled = true;
          deleteIds.push(id);
          deleteNames.push(node.name);

          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value= true;
      level1.value = [];
      axios.get('/doc/all/'+route.query.ebookId,).then(res => {
        loading.value = false;
        const data = res.data;
        if (data.success) {
          docs.value = data.content;
          console.log("原始数组：", docs.value);

          level1.value = [];
          level1.value = Tool.array2Tree(docs.value, 0);
          console.log("树形结构：", level1);

          // 父文档下拉框初始化，相当于点击新增
          treeSelectData.value = Tool.copy(level1.value) || [];
          // 为选择树添加一个"无"
          treeSelectData.value.unshift({id: 0, name: '无'});

        } else {
          message.error(data.message);
        }
      }).catch(err => {
        loading.value = false;
        message.error(err.message);
      })
    }


    // -------- 表单 ---------
    /**
     * 数组，[100, 101]对应：前端开发 / Vue
     */
    const docIds = ref();
    const doc = ref<any>({
      ebookId: route.query.ebookId,
      name:'',
      parent:0,
      sort:0,
      content:''
    });
    const editor = new E('#content');
    editor.config.zIndex = 0;
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    // const handleModalOk = () => {
    //   modalLoading.value = true;
    //   axios.post("/doc/save", doc.value).then((response) => {
    //     modalLoading.value = false;
    //     const data = response.data; // data = commonResp
    //     if (data.success) {
    //       modalVisible.value = false;
    //
    //       // 重新加载列表
    //       handleQuery();
    //     } else {
    //       message.error(data.message);
    //     }
    //   });
    // };

    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();

      axios.post("/doc/save", doc.value).then((response) => {
        modalLoading.value = false;
        const data = response.data; // data = commonResp
        if (data.success) {
          // modalVisible.value = false;
          message.success("保存成功！");

          // 重新加载列表
          handleQuery();
        } else {
          message.error(data.message);
        }
      });
    };

    /**
     * 内容查询
     **/
    const handleQueryContent = () => {
      axios.get("/doc/find-content/" + doc.value.id).then((response) => {
        const data = response.data;
        if (data.success) {
          editor.txt.html(data.content)
        } else {
          message.error(data.message);
        }
      });
    };


    /**
     * 编辑
     */
    const edit = (record: any) => {
      // 清空富文本框
      editor.txt.html("");
      doc.value = Tool.copy(record);
      modalVisible.value = true;
      handleQueryContent();

      // 不能选择当前节点及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});

      // setTimeout(()=>{
      //   editor.create();
      // },100)

    };

    /**
     * 新增
     */
    const add = () => {
      // 清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };
      treeSelectData.value = Tool.copy(level1.value) || [];

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});

      // setTimeout(()=>{
      //   editor.create();
      // },100)
    };


    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };


    // ----------------富文本预览--------------
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };


    onMounted(()=>{
      handleQuery();
      editor.create();

    })

    return {
      param,
      // docs,
      level1,
      doc,
      loading,
      columns,
      edit,
      add,
      handleDelete,
      handleSave,
      modalLoading,
      modalVisible,
      handleQuery,
      treeSelectData,

      drawerVisible,
      previewHtml,
      handlePreviewContent,
      onDrawerClose,
    }
  }

})


</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>

